Reactive Oxygen Spices Scavenging Behavior of Selenium Upon Vinyl Chloride Interaction With Hemoglobin

BackgroundVinyl chloride (VC) a colorless gas with a pleasant odor that is capable of entering the body through oral or inhalation routes. Extensive studies on this compound indicated that it is a carcinogen, and Vinyl chloride exposure can result in a specific type of cancer in VC workers. Whereas hemoglobin plays a vital role in oxygen transfer throughout the body, the effect of VC on human hemoglobin has not been studied in a molecular aspect. Furthermore, selenium as an antioxidant is a vital factor for the health of humans and animals. Therefore, the effect of the antioxidant capability of selenium on the interaction between vinyl chloride and hemoglobin was studied.MethodsThe effect of the antioxidant capability of selenium on the interaction between VC and hemoglobin was investigated by different spectroscopy methods such as UV-visible, Fourier-transform infrared, chemiluminescence, and fluorescence spectroscopies and molecular dockingResultsThe results indicated the destruction of hemoglobin structure in the presence of different concentrations of vinyl chloride, but in the presence of selenium, the damaging effect of VC on hemoglobin structure was decreased, relying on its antioxidant capability results.ConclusionsAccording to our findings, vinyl chloride destroyed hemoglobin structure utilizing ROS production, and the presence of selenium as an antioxidant inhibits the destroying effect of vinyl chloride on hemoglobin

Crystal structure of 4-carbamoylpyridinium chloride

The hydrochloride salt of isonicotinamide, C6H7N2O+·Cl−, has been synthesized from a dilute solution of hydrochloric acid in acetonitrile. The compound displays monoclinic symmetry (space groupC2/c) at 150 K, similar to the related hydrochloride salt of nicotinamide. The asymmetric unit contains one protonated isonicotinamide molecule and a chloride anion. An array of hydrogen-bonding interactions, including a peculiar bifurcated pyridinium–chloride interaction, results in linear chains running almost perpendicularly in the [150] and [1-50] directions within the structure. A description of the hydrogen-bonding network and comparison with similar compounds are presented.